Waterproof up to 100+ feet, according to IP-X8 testing standards, and dustproof to a hermetic level.

Adjustable, removable lanyard may be worn around neck or shoulder, or attached to bags and packs.

Magnetic closure will not interfere with consumer electronics, credit cards, memory cards, hard drives, etc. (Do not place in close proximity to traditional compasses, pace makers or other sensitive medical devices)